Patent GB-937540-A (GB)
Title: Improvements in or relating to sanitary closets and treatment of waste therein
Inventor: WOOD WILLIAM HENRY
IPC: A47K11/02
Filed: 1961-06-28
Abstract: 937,540. Incinerators. KEN-LAB Inc. June 28, 1961, No. 23469/61. Class 126. [Also in Group I] A waste disposal unit 20 including a sanitary closet comprises a housing 20 with a top wall 26 having an opening 24, a bowl structure 34 supported in the housing 20 directly below the opening 24, means defining a displaceable bottom for the bowl 34, a combustion chamber 36 in the housing 20 beneath the bottom, a gas-jet burner 38 with a nozzle 182 to direct a flame toward a lower section of the chamber 36, and a blower fan 40 in the housing 20 operable to provide a flow of air through the chamber 36 so as to oxidize rapidly waste material in a receptacle 184 and exhaust the gases to the atmosphere. The burner 38 includes means for discharging and igniting a mixture of gas and air from the nozzle 182 at a pressure of at least 25 1b./sq. inch to produce a flame temperature of 800‹ to 2000‹ F. The receptacle has inclined side-and-bottom walls terminating so that there is substantially no flat section along the bottom at a position which is substantially central to the displaceable bottom. The bottom-forming means for the bowl 34 comprises rotor mechanisms 66, 68, each of which includes a number of vane members, e.g. 74a, 74b, 74c and 74d providing bottom-and-sidewall-forming portions of the bowl 34. The bowl 34 comprises an upper portion including a side wall 62 extending from the opening 24 and the displaceable bottom comprising rotor mechanisms 66, 68 each having a pair of end-plates 70, 72 between which are the vane members, and drive means for rotating the mechanisms 66, 68, on closure of the cover 32 of the seat 30, to position the vanes to form the bowl bottom and further to rotate the mechanisms to open the bowl 34 to the lower part of the housing 20. Means in the housing 20 also operates to form a flexible sheet of disposable fluid-impervious material into an open-top container B lining the walls and bottom of the bowl 34 to receive waste material through the opening 24, the movement of the rotors 66, 68 toward each other acting to fold the side walls of the container B to close it and so package the waste material as the container B is released by the vanes to drop into the chamber 36. The container-forming means includes means to position the sheet in overlying relation to the rotors 66, 68 and a collar 64 for engaging from above a central portion of the sheet when so positioned to push it into lining relation with the bottom and side walls formed by the vanes so that the sides of the container B project above the upper edges of the vanes. The collar 64 moves telescopically relative to the upper portion of the bowl 34 and also between a position above the bowl's lower portion and a position within it. A support 98 within the housing 20 mounts a roll 100 of sheet material, and a selected length of it is moved by a suitable mechanism to overlie the lower bowl portion. The air flows through the housing 20 at a rate sufficient to make the pressure therein negative to that of the atmosphere, the flame of the gas-jet 28 being produced in its path, the hot point thereof being located in the zone of deposit in the receptacle 184. Said air flow is continued for a time after the waste has been oxidized to exhaust gases from the housing 20. The burner 38 and the fan 40 are selectively and automatically controlled in the cremation of the waste, the fan being started on occupying the seat 30. The operation of the rotors can be modified to provide a different closure for the package.